Robots and astronaut power are being used to churn, splash and slosh green water in microgravity aboard the International Space Station.
Besides making really cool, gooey-looking waves inside clear, plastic capsules about the size of a two-liter soda bottle (the liquid is actually water dyed with food coloring), the science behind the project developed by Florida Institute of Technology scientists, NASA engineers and researchers at the Massachusetts Institute of Technology (MIT), may help NASA engineers build better fuel tanks.
